What are the hazards of lithium ion batteries to the human body? How to recycle?

Lithium-ion battery production line processing, and will the process cause (gas, water and soil) pollution? At the current stage of lithium-ion battery processing, lithium-ion batteries (Li-ion) will not have (toxic heavy metals) pollution of. Of course, this concept is relative, and lead-acid, nickel-chromium batteries, its pollution is very small, there is no heavy metal pollution. But regarding the environment, it is definitely harmful (what is chemistry not poisonous?). Electrode materials, electrolytes and solvents may be polluted: the pole piece production process: in these processes, the domestic mainstream lithium iron phosphate ion system, even the ternary system, does not have relatively large pollution, of course the ternary system There may still be some pollution with lithium cobalt oxide. For example, cobalt, manganese, and nickel are all heavy metals, but they are relatively environmentally friendly. Among them, lithium iron phosphate is the most environmentally friendly. The remaining part, in addition to the pollution of the materials mentioned above, the solvent in the injection is mainly cyclic/chain carbonate or carboxylic acid ester. The most important solute is lithium ion salt, lithium hexafluorophosphate, and the most important additives are film-forming additives, flame retardant additives, conductive additives, and additives to improve low-temperature discharge. The pollution in the whole process is okay. Of course, chemical agents, if you don't pay attention to their control, will definitely pollute the environment. As for the final packaging and formation, the pollution is even smaller. There are several different processing methods shown in the figure as follows: Figure 5 63. Let's talk about the recycling part about the lithium cobalt oxide and the ternary system. Of course, recycling is still necessary, after all, it contains heavy metals. However, lithium iron phosphate, except for the internal electrolyte, is basically harmless. Compared with other batteries, there are no toxic and harmful metal elements and substances such as lead, mercury, and cadmium, so the pollution is relatively small. However, the substances in waste lithium-ion batteries entering the environment can still cause heavy metal nickel, cobalt pollution (including arsenic), fluorine pollution, organic pollution, dust and acid-base pollution. The electrolyte and conversion products of waste lithium ion batteries, such as LiPF6, LiAsF6, LiCF3S03, HF, P201, etc., solvents and their decomposition and hydrolysis products, such as DME, methanol, formic acid, etc., are all toxic and hazardous substances. Send the ion battery to a qualified place for unified disposal, do not discard it randomly. 1. First of all, radiation is divided into ionizing radiation and electromagnetic radiation. Certain electromagnetic waves may appear when a battery passes through electrical appliances (such as mobile phones), but the battery itself does not. Ionizing radiation is the general term for all radiation that can cause ionization of substances. Many high-speed charged particles include alpha particles, beta particles, and protons, and uncharged particles include seeds, X-rays, and gamma rays. If these radiation exceed doses, they will have an adverse effect on humans. 2. There are many types of lithium-ion batteries. Common lithium-ion batteries include lithium-ion batteries and lithium-ion polymer batteries. Most of the lithium-ion batteries are wrapped in a stainless steel case, which is relatively safe. The outer packaging of lithium-ion polymer batteries is like tin foil. Paper is susceptible to damage, and burns easily after being damaged, because lithium ion is a very active metal, which can cause burning when exposed to the air. Lithium-ion batteries are harmful to the human body. The most harmful is the electrolyte solution. The electrolyte is an organic and volatile liquid, and it is obviously corrosive. Inhalation of volatile gas for a long time will damage the respiratory tract. Solute: Lithium ion salts are often used, such as lithium perchlorate (LiClO4), lithium hexafluorophosphate (LiPF6), and lithium tetrafluoroborate (LiBF?). Solvent: Since the working voltage of the battery is much higher than the decomposition voltage of water, organic solvents are often used in lithium-ion batteries, such as ether, ethylene carbonate, propylene carbonate, and diethyl carbonate. Organic solvents often destroy the structure of graphite during charging, causing it to exfoliate, and form a solid electrolyte membrane (solid electrolyte interphase, SEI) on its surface to cause electrode passivation. Organic solvents also bring safety problems such as flammability and explosion. Disclaimer: Some pictures and content of the articles published on this site are from the Internet, if there is any infringement, please contact to delete. Previous: Analysis of Li-ion battery capacity